Transmission gearing



May 11 1926.

H. W. SWEET TRANSMISSION GEARING 3 Sheets-Sheet 1 Original Filed Jan. 101923 May 11 1926. 1,584,252

7 H. w. SWEET TRANSMISSION GEARING Original Filed Jan 10, 1923Sheets-Sheet 2 WWZ/ May 11 1926. 1,584,252

H. w. SWEET I TRANSMI SS ION GEARING Original Filed Jan. 10

, 1925 5 sheets-sheets (3 J7 ave/flow: O I t 1/ W .Patented May 11,1926.

UITED STATES" PATENT OFFICE. 4

HENRY-W. SWEET, OF SYRACUSE NEW YORK, ASSIGNOR TO BROWN-L'IPE GEAR COM-PANY, OF SYRACUSE, NEW YORK, A CORPORATION OF NEW YORK.

TRANSMISSION GEARING.

Original application filed. January 10, 1923, Serial No. 611,869.Divided and this application filed December 20, 1923.

This invention relates to transmission gearings, such as are used inmotor vehicles and has for it object a particularly simple, efficientand durable means for supporting a brake mechanism. This application isa division of my pending application, Serial No. 611,869, filed January10, 1923.

The invention consists in the novel features and in'the combinations andconstructions hereinafter set forth and claimed.

In describing this invention, reference is had to the accompanyingdrawings, in which like characters designate parts in all the views.

Figure 1 is an end elevation of the transmission gearing provided withmy invention.

Figure 2 is a longitudinalvertical sectional view taken centrally ofFig. 1. I

Figure 3 is a detail view of the cupshaped member supporting the bearingadjusting means and the brake band and operating means.

Figures 1, 5 and 6 are detail views of the means for holding the bearingadjusting member in its adjusted position.

This transmission gearing includes means detachably mounted on the wallof the case concentric with the driven shaft for supporting the brakebandand a portion of the operating means therefor.

1 designates thercase which may be of any suitable form, size andconstruction.

2 and 3 are alined driving and driven shafts. x a

1 is a counter or jack shaft all journalled in the case.

5 designates the gear on the driving shaft 2 meshing with the gear 6rotatable with the jack shaft 4:.

7 8 and 9 are additional gears rotatable with the jack shaft 4:, thesegears 6, 7, 8 and 9 being here shown as mounted upon a single hub 10. 11and 12 are gears rotatable with the driven shaft and shiftable axiallythereon in any suitable manner into and out of mesh respectively withthe gear 7 and with the gears 8 and 9.

The gear 5 is formed with an external clutch face 13 and the gear 11with an intercorresponding Serial No. 681,743. g Y

The construction and arrangement of the shafts and the gears of thisgearing form no part of this invention and, as the construction andoperation of this type of transmission gearing is well known, furtherdescription is thought to be unnecessary.

The driving and driven shafts 2 and 3 are mounted in oppositely disposedconical bearings located in opposite end walls of the case land also thedriven shaft 3 is mounted in a conical bearing located in a socket 15 inthe inner end of the drive shaft 2, this bearing 16 in the socket 15having the same inclination as the bearing 17 of the drive shaft 2; andthe bearing 18 for the driven shaft having an opposite inclination tothat of the bearings 16 and17. The drive shaft 2 is connected throughsuitable clutch mechanism to the engine shaft, as will be understood bythose skilled in the art.

Each bearing 16, 17 or 18, as here illustrated, consists of inner andouter rings 19 and 20 having opposing conical faces 21 and 22 androllers 23 between said faces, such bearings being adjustable axially ofthe shaft. The driven shaft is provided with a shoulder 23 abuttingagainst the inner edge of the inner ring 19 and likewise the drivingshaft 2 is provided with a shoulder 24: abutting against the inner edgeface of the inner ring of its bearing 17. The inner ring of the bearing16 is mounted on the conical reduced: portion 25 of the driven shaft 3.The conical face 21 of the inner ring of each bearing is the bottom of agroove so that the rollers are held from endwise movement relatively tothe inner ring. The relative movementof the bearings 16, 17 and 18, and

the shafts 2, 3 is such that axial movement 7 of the bearing 18 inwardlythrusts the driven shaft 3 inwardly, or to the left, Fig. 2 and tightensor adjusts all of the bearings 16, 17 and 18. Hence upon adjustingmovement of the bearing 18 all of such bearings will be correspondinglyadjusted.

The bearing 17 is held from outward ax ial movement by a cap 26 on theoutside of the case and having a shoulder 27 thrusting against the outerface of the outer ring of the bearing 17'. I This cap 26 is secured tothe case in any suitable manner and is provided with an axial openingthrough which the driving shaft 2 extends.

The means for adjusting the bearing 13 axially is exposed on andoperable from the outsideof the case and is arranged concentric with thedriven shaft 3 which extends through the case to the outside thereof forconnection to the propeller shaft tl'irough a universal joint in anysuitable manner.

In the illustrated embodiment of my in-" vention, the bearing 18 issupported in tubu lar portion 28 of a hub or cup-shaped part 29, thetubular portion extending into an opening in the wall of the case, andthe outer bearing ring 20 being located in such tubular portion, and theadjusting means comprises a member supported in the cupshaped member orhub 29 and adjustable axially thereof and thrusting against the bearing18 and preferably the outer ring 20 thereof. 'This, adjusting member, ashere illustrated, comprises a ring or plug 30 threading into thecup-shaped'member 29 thrusting against the outer ring 20 of the bearing18, such plug or ring also engaging the periphery of the shaft 3 andbeing here shown as carrying a packing 31 which engages the periphery ofthe shaft; The packing is held in position by the annular plug threadinginto the plug 30 against the packing 31. I

For the purpose of operating the adjusting member 30, it is provided. atits outer edge with a plurality of notches 34 for re ceiving a suitabletool or wrench. Obviousl v, by turning the adjusting member in onedirection, the bearing 18=will be thrustaxially and tightened and as thebearing thrusts:

against theshoulder 3- of the driven shaft 3, this shaft will be thrustaxially, slightly adjusting the bearings 16 and 17.. l

The adjusting member 30 is held in its adjusted position by meanscoacting with the hub or cap 29. As here illustrated, such meanscomprises a flat ring or washer 35, a nut 36 threading 011 the adjustingmember 30 against the washer and thrusting the washer against the endface of the hub or cap 29 and the locking means, as the tongue 37 fixed,as by screws 38, to the periphery of the hub or cup-shaped member 29 andextending into two alined notches 39, 40 pro- 7. vided in theperipheries of the washer 35 rotatable with the driven shaft 3.

and the nut 36 loosened and the member 30 turned in the cup-shaped part29. When this adjustment is effected, the nut 36 is again tightened andthe locking member 37 replaced.

The cup-shaped part or hub 29 is detachably secured to the end wall ofthe case and, as here shown, it is secured thereto by fastening membersas screws 42 extending through openings in the flange 42 of the huband-threading into the wall of the case,

the flange 42 lapping or abutting against the outer face of such wall.

The brake band of the transmission brake and parts of the operatingmeans therefor are detachably supported on the transmission case and, ashere illustrated, such support is carried by the hub 29 and comprisesoutwardly extending arms 43, 44 which extend from opposite sides of thehub in radial d rections. The brake band 45 extends around the outerprojecting end of the driven shaft 3 substantially concentric therewithand coacts with the brake drum not shovgn T e brake band comprises theusual resilient areshaped band and a lining 46 which engages the brakedrum. This band is supported on a laterally extending stud 47 at-theendof the arm 43 and is provided with a U-shaped loop 48 extending aroundthe stud 47, which loop is secured to the stud in any well-known manner.The brake band is operated or contracted onto the brake drum by means ofthe lever 49 pivoted at one end at 50 to one end.

of the brake bandand at its other end to a link 51 which is connected tothe operating lever. The lever 49 is pivoted between its ends to theendwisely movable rod 52 extending through an eye 53 in the. supportingarm 44, the rod 52 also extending through an outwardly extending lug 54at the other end of the brake band, the rod is provided with anadjustable shoulder, as a nut 55, thrusting against the lower side ofthe eye 53 and springs are interposed between the eye 53 and the lug 54and between the lug 54 and adjustable shoulders or nuts 56 atthe upperend of the rod.

The link 51 which is pivoted at its. lower end to the lever 49 ispivoted at its upper end at 57 to an arm58 extending from the. hub 59 onthe brakelever 60, the hub being pivoted at 61 to the transmission case.Thebrakelever extends upwardly adjacent the gear shifting lever 63. Theoperation of the brake band forms no part of this invention. It isobvious, however, that upon the operation or pulling rearwardly of thebrake lever, the link 51 will be pushed downwardly and the end ofthebrake band to which the lever 49 is pivoted moved to the right, Fig. 1and also the rod 52 pulled down, causing the spring above the lug 54,which is stronger than the spring below such lug, to pull the lug 54 andthe other end of the brake band downwardly, thus contracting the brakeband on the drum. When the brake lever is released, the reverse ol thisoperation takes place and the spring below the lug 54' then expandingthe brake band off the brake drum.

The brake band is detachably supported on the case by the hub or cupmember 29. The arm l3 is additionally secured to the wall of the case bya suitable fastening member as a screw 65 extending through an openingtherein and threading into the wall of the case.

By my invention, the brake mechanism is readily applied to thetransmission case. The adjusting means for the bearings and thearrangement by which a plurality of bearings for axially alined shaftsare adjusted from one point constitute the subject matter of my pendingapplication, Sr. No. 611,869, filed January 10, 1923 of which thisapplication is a division.

What I claim is:

In a transmission gearing, a case, a shaft journalled in the case andextending to the outside thereof, a brake band arranged subslantiallyconcentric with the shaft and a support for the brake band, said supportincluding a hub detachably mounted on the wall of the case concentricwith the shaft and supporting the bearing for the shaft, means forsecuring the hub to the case, the hub having radially extending armsextending in opposite directions, said arms lying against the wall ofthe case and secured thereto, one of said arms having a stud forsupporting the brake band and means for operating the brake band, aportion of which is carried by the other arm.

In testimony whereof, I have hereunto signed my name, at Syracuse, inthecounty of Onondaga, and State of New York, this rd'day of Dec. 1923.

HENRY W. SWEET.

